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SF MARATHON 1ST HALF 2026

Juliana Amorim Guarnieri

Bib: 18340•F•Age: 31

San Rafael, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 40%
Gender (Female)
#0 / 2930
Top 27%
Division (F30-34)
#0 / 651
Top 27%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:54/mi
19:48
→ flat
4M
9:54/mi
39:36
↑ 67↓ 69
6M
10:04/mi
59:45
↑ 1231.1%
8M
9:45/mi
1:19:16
↑ 166↓ 531.1%
9.6M
9:45/mi
1:34:52
↑ 68↓ 1931.5%
10M
19:29/mi
1:42:39
↓ 241.1%
10.5M
4:56/mi
1:45:07
↓ 732.7%
12M
14:14/mi
2:06:28
↑ 2803.2%
Finish· 13.11 mi
9:25/mi
2:16:55
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time59:45
Pace9:58 /mi
2nd Half
Distance7.11 mi
Time1:17:10
Pace10:51 /mi
📊Positive Split: 29.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:10:1319:489:5419:48
9:54
-
4M
4.00 mi07:30:0139:369:5419:48
9:54
0:00
6M
6.00 mi07:50:1059:459:5820:09
10:04
+0:10
8M
8.00 mi08:09:411:19:169:5419:31
9:45
-0:19
9.6M
9.60 mi08:25:171:34:529:5315:36
9:45
0:00
10M
10.00 mi08:33:041:42:3910:167:47
19:29
+9:44
10.5M
10.50 mi08:35:321:45:0710:012:28
4:56
-14:33
12M
12.00 mi08:56:532:06:2810:3221:21
14:14
+9:18
Finish
13.11 mi09:07:202:16:5510:2710:27
9:25
-4:49

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

4:56 /mi

Average Pace

10:27 /mi

Slowest Pace

19:29 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28

2% of race

Time at Steady Pace

1:45:19

77% of race

Time at Slower Pace

29:08

21% of race

Average Pace: 10:27 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi07:10:1319:489:5419:48
9:54
#2868
4M
4.00 mi07:30:0139:369:5419:48
9:54
#2702
6M
6.00 mi07:50:1059:459:5820:09
10:04
#2698
8M
8.00 mi08:09:411:19:169:5419:31
9:45
#2514
9.6M
9.60 mi08:25:171:34:529:5315:36
9:45
#2668
10M
10.00 mi08:33:041:42:3910:167:47
19:29
#2698
10.5M
10.50 mi08:35:321:45:0710:012:28
4:56
#2701
12M
12.00 mi08:56:532:06:2810:3221:21
14:14
#2705
Finish
13.11 mi09:07:202:16:5510:2710:27
9:25
#2642
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 47%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:15

Segment Time

11:24/mi

Pace

0.90 mi

Distance

Overall

3090

Women

1032

Division

233

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi28688842062935(Top 45%)984(Top 34%)221(Top 34%)
4M4.00 mi2.00 mi2702+166820+64184+222646(Top 40%)790(Top 27%)176(Top 27%)
6M6.00 mi2.00 mi2698+4816+4186-22772(Top 42%)828(Top 28%)180(Top 28%)
8M8.00 mi2.00 mi2514+184718+98161+252076(Top 32%)530(Top 18%)125(Top 19%)
9.6M9.60 mi1.60 mi2668-154802-84176-153673(Top 56%)1420(Top 48%)322(Top 49%)
10M10.00 mi0.40 mi2698-30817-15183-73199(Top 49%)1091(Top 37%)243(Top 37%)
10.5M10.50 mi0.50 mi2701-3824-7185-22951(Top 45%)963(Top 33%)212(Top 33%)
12M12.00 mi1.50 mi2705-4830-6186-12935(Top 45%)984(Top 34%)221(Top 34%)
Finish13.11 mi1.11 mi2642+63804+26178+82162(Top 33%)628(Top 21%)144(Top 22%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 45%
~flat
+5ft-3ft

Overall

2935

Females

984

F30-34

222

2M→4M

2.0 - 4.0 mi

Top 40%
×4story building
+67ft-69ft

Overall

2646

Females

790

F30-34

178

4M→6M

4.0 - 6.0 mi

Top 42%
×9story building
+123ft-9ft

Overall

2772

Females

828

F30-34

182

6M→8M

6.0 - 8.0 mi

Top 32%
×12story building
+166ft-53ft

Overall

2076

Females

530

F30-34

127

8M→9.6M

8.0 - 9.6 mi

Top 56%
×13story building
+68ft-193ft

Overall

3673

Females

1420

F30-34

324

9.6M→10M

9.6 - 10.0 mi

Top 49%
×2story building
+0ft-24ft

Overall

3199

Females

1091

F30-34

245

10M→10.5M

10.0 - 10.5 mi

Top 45%
×6story building
+1ft-73ft

Overall

2951

Females

963

F30-34

214

10.5M→12M

10.5 - 12.0 mi

Top 45%
×21story building
+280ft-26ft

Overall

2935

Females

984

F30-34

222

12M→Finish

12.0 - 13.1 mi

Top 33%
×7story building
+14ft-89ft

Overall

2162

Females

628

F30-34

144

Passing Analysis

Category:
Athletes Passed
782*
Passed By
556
Net Change
+226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2868
2M → 4M23973+166#2868#2702
4M → 6M9490+4#2702#2698
6M → 8M234*50+184#2698#2514
8M → 9.6M27181-154#2514#2668
9.6M → 10M3161-30#2668#2698
10M → 10.5M710-3#2698#2701
10.5M → 12M7478-4#2701#2705
12M → Finish76*13+63#2705#2642
TOTALS782*556+226

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events